Doctor profile · Federal record

Dr. Louisa Dresser, MD

Internal Medicine Physician (CMS: Hospitalist) · San Francisco, CA

  • NPI 1942572144
  • Accepts Medicare
  • MIPS 85.7 / 100 · 2023
  • 17 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
45 Castro St
San Francisco, CA 941141010
(415) 600-6257

Credentials & registration

NPPES · NUCC
NPI registered
February 2012 — 14 yrs on file
Profile last updated
April 3, 2014
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A125558

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942572144. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,085
Distinct HCPCS
5
Medicare allowed
$115,640
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 754 229 $90
99239 Hospital discharge day management, more than 30 minutes 156 152 $131
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 86 44 $134
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 61 61 $197
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 28 27 $146

In context: peer comparison

Among 236 peers in this city , average services per provider: 93. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$19
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Avanos Medical 1 $18.52

By nature of payment

Food and Beverage
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
38
Patients
0
Total drug cost
$288
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 15 0 $144
Metoprolol Succinate Generic 12 0 $93
Prednisone Generic 11 0 $51

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Louisa Dresser's medical specialty?
Dr. Louisa Dresser practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Louisa Dresser practice?
Dr. Louisa Dresser practices at 45 Castro St, San Francisco, CA 941141010. Office phone: 4156006257.
What is Dr. Louisa Dresser's NPI?
Dr. Louisa Dresser's National Provider Identifier (NPI) is 1942572144, issued by NPPES.
Does Dr. Louisa Dresser accept Medicare assignment?
Yes. Dr. Louisa Dresser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louisa Dresser commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.